SOLUTION: Jan takes a test with 60 questions. She got four times as many questions correct as she did incorrect. How many questions did she answer correctly? How many questions did she answe

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Question 1047863: Jan takes a test with 60 questions. She got four times as many questions correct as she did incorrect. How many questions did she answer correctly? How many questions did she answer incorrectly?
Answer by fghfhg(1) About Me  (Show Source):
You can put this solution on YOUR website!
Let the number of incorrect answers= a
Let the number of correct answers =c

1) c=4a
2) a+c=60
Substitute 1 into 2:
a+4a=60
5a=60
a=12
substitute this in either 1) or 2)
c=4(12)
c=48
Therefore correct answers= 48, incorrect answers= 12